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3.11 Before treatment with a new drug 11 people with sleep problems have a median sleeping...

3.11 Before treatment with a new drug 11 people with sleep problems have a median sleeping time of 2 hours per night. A drug is administered, and it is known for good scientific reasons that if it has an effect it will increase sleeping time, but some doctors doubt if it will have any effect. Are their doubts justified if the hours per night slept by these individuals after taking the drug are:

3.1       1.8      2.7       2.4      2.9       0.2      3.7      5.1       8.3      2.1      2.4

math   Statistics-And-Probability   
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amem 2. 4 Sotel data mean dala Honce, doubts ase mon-jush hie

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